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From:   "Rafael J. Wysocki" <rafael@kernel.org>
Date:   Fri, 22 Jan 2021 16:32:55 +0100
Message-ID: <CAJZ5v0iVp8z7WAqX1NxQNKx55tfwUJtx-gK67x=Npxjf05g4Kg@mail.gmail.com>
Subject: Re: [PATCH v1] Documentation: ACPI: add new rule for gpio-line-names
To:     Andy Shevchenko <andy.shevchenko@gmail.com>,
        Flavio Suligoi <f.suligoi@asem.it>
Cc:     Mika Westerberg <mika.westerberg@linux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        "Rafael J . Wysocki" <rjw@rjwysocki.net>,
        Len Brown <lenb@kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>,
        ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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Precedence: bulk

On Fri, Jan 8, 2021 at 5:03 PM Andy Shevchenko
<andy.shevchenko@gmail.com> wrote:
>
> On Fri, Jan 8, 2021 at 5:28 PM Flavio Suligoi <f.suligoi@asem.it> wrote:
> >
> > The gpio-line-names lists must respect some rules.
> >
> > This patch adds a new rule in documentation, to avoid
> > the use of duplicate names in the same gpiochip.
>
> Thanks!
> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
>
> > Signed-off-by: Flavio Suligoi <f.suligoi@asem.it>
> > ---
> >  Documentation/firmware-guide/acpi/gpio-properties.rst | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/Documentation/firmware-guide/acpi/gpio-properties.rst b/Documentation/firmware-guide/acpi/gpio-properties.rst
> > index b36aa3e743d8..4e264c16ddff 100644
> > --- a/Documentation/firmware-guide/acpi/gpio-properties.rst
> > +++ b/Documentation/firmware-guide/acpi/gpio-properties.rst
> > @@ -146,6 +146,7 @@ following rules (see also the examples):
> >      other words, it is not mandatory to fill all the GPIO lines
> >    - empty names are allowed (two quotation marks ``""`` correspond to an empty
> >      name)
> > +  - names inside one GPIO controller/expander must be unique
> >
> >  Example of a GPIO controller of 16 lines, with an incomplete list with two
> >  empty names::
> > --

Applied as 5.12 material, thanks!